Feasibility of simulated biomass tar removal by a self-cooling coupled with absorption technology
Tar removal is one of the bottlenecks to the large-scale industrialization and commercialization of biomass gasification technology.A Self-Cooling Coupled with Absorption Technology(SCCAT)was developed and patented.Cyclohexane and n-dodecane were used as the simulated light and gravimetric tar respectively,and an online gas chromatograph method for measuring their concentrations was established.Absorbents for cyclohexane were selected.The simulated tar removal feasibility were investigated by a self-proposed test rig of the SCCAT.The results show that,modified diesel is recommended as the best absorbent for cyclohexane.Both cyclohexane and n-dodecane after the SCCAT can be reduced to 1%,providing a total removal efficiency of 98%,at a cooling temperature and absorption temperature of 35 °C and 30 °C respectively.It takes both of cooling and absorption effects in the cooler on cyclohexane removal.Cyclohexane concentration out of the absorber can be dropped to lower than 1%.The coolant recovery can be recycled succesfully.The modified diesel can be regenerated effectively with a regeneration capacity of 90%after being purged for 125 min at 50 °C.The SCCAT has proved to be feasible for deep removal of simulated tar.
biomass gas simulated tar self-cooling absorption coupling
WU Juan CHEN Haijun ZHU Yuezhao CUI Qun YANG Li WANG Xiaoyuan
Jiangsu Key Laboratory of Process Enhancement and New Energy Equipment Technology,School of Mechanical and Power Engineering,Nanjing University of Technology,Nanjing 211816,Jiangsu,China
国际会议
桂林
英文
1-7
2013-07-16（万方平台首次上网日期，不代表论文的发表时间）